Decentralized Combined Heat and Power Dispatch Using the Communication-Censored ADMM

Decentralized methods are recently employed in combined heat and power systems (CHPS), because the electric power systems (EPS) and distribute heating systems (DHS) are controlled independently by different operators. However, most of them only focus on the accuracy of computation results but neglect the cost of communication in computation. In this paper, we develop a communication-censored alternating direction method of multipliers (COCA) to solve the CHPS dispatch problem. Different from the ADMM, the boundary information is allowed to transmit to neighbors in COCA only when its value is significantly changed as compared to its previous value. The censoring function is utilized to measure the difference to improve the efficiency of communication. Experimental results demonstrate that COCA can not only reach the same solution as the centralized method but also reduce communication costs.